I had run yum update command and server updated and installed about 300 different module with kernel. After update complete, webserver(nginx) and server didn't reachable. Webserver and ssh connections was said that "Connection refused"

I' m using centminmod beta (latest) and i know that it installs the csf and configuring the iptables. And connection problems like that connection refused means there are a network problem. So we must look the csf and iptables first.

After reboot, i run csfstop command ( disable csf ) and still problem, than later i run the "service iptables stop" and works finally!

So, what is problem now? How can i fix it permanently ? Because, if i reboot the server it will be same. On the last yum update, too many modules have been updated like "network manager, iptables, dhcp, firewalld-filesystem etc.

On the last update, yum update changed (reset) somethings so we had that problem. What is your advice, especially @eva2000 due centminmod usage.

that can cause problems if firewalld is running as Centmin Mod doesn't configure for firewalld by default unless you tell it to and set FIREWALLD_DISABLE='n' instead of the default FIREWALLD_DISABLE='y'

when iptables and csf firewall are started/running what output do you get for

So, should i add that lines to etc/centminmod/custom_config.inc file ?

Code (Text):

FIREWALLD_DISABLE='y'

I don't understand exactly. I disabled both first. For now, i enabled the csf with csfstart command, and server works without problem. But i was run the service iptables stop command and i don't want to try to enable iptables again

looks like all iptables rules have been cleared (csf firewall is only a wrapper to talk with iptables) - you might want to use 123.09beta01's tools/csf-reinstall.sh to reinstall and re-setup csf firewall again but make sure iptables is running and enabled first